
A.a、b试管呈蓝色,且a比b颜色浅;c、d试管呈砖红色,且c比d颜色浅 |
B.a、b试管呈蓝色,且a比b颜色深;c、d试管呈砖红色,且c比d颜色浅 |
C.a、b试管呈蓝色,且a比b颜色浅;c、d试管呈砖红色,且c比d颜色深 |
D.a、b试管呈蓝色,且a比b颜色深;c、d试管呈砖红色,且c比d颜色深 |

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

